Sony will launch a new line of small, flat, external batteries to provide extra energy for tablets and smartphones, the first such products to use its thin “laminate” technology.

The Tokyo-based electronics firm announced several new external battery charger with the : CP-F2L, CP-F1L and CF0ELSVP.

The two first models, the CP-F2L and CP-F1L are design-wise identical but one including come with 7,000 mAh internal battery capacity, that it says provides about three full charges to a typical smartphone, at 2.1 amps when both of its USB ports are used, as well as two USB port and one micro USB port. The battery weighs 198 grams and measures 130.6 millimeters by 70.4mm by 12.9mm, on a par with many smartphones. While the second model come however with a 3,500mAh internal battery and a single USB port alongside a micro USB one for a size of 70.4×128.1×9.4mm .

“This thin type of battery is Sony’s strength,” said spokesman Jin Tomihari. “The smartphone market is growing, so the battery market is also growing accordingly.”

Finally, the CF-ELSVP is in the other hand a more compact product with a size of 28x125x26.5mm, come in four different colors and a single USB port.

The Tokyo-based electronics firm announced the new line of small, flat, external batteries for the Japanese market with the round type to go on sale from October 13, and the flat models from November 14’th in Japan, with prices ranging from 2,300 ¥ (30 $ US) to 7,000 ¥ (90 $) depending on the capacity.

Global launch dates and prices will be around those for the Japanese market, Tomihari said.

Sony claims that the 3,500mAh version of its new line can be recharged up to 500 times and can charge most smartphones in about 130 minutes. They can be recharged in about 8 hours by USB and 4 hours by electric socket.

Sony was an early adaptor of current rechargeable battery technology, and was the first to market with lithium-ion batteries in 1991.